Gang-plow.



N. I. MILLIKBN.

y GANG Pww APPLIUATIQN FILED SEPT. 13, 1913.

1,095,511. y PatentedMay5,1914.

unirsi) sr-Arne PATENT orrros.y

NORMA I. MILLIKEN, OF SOUTH BENID, INDIANA. ASSIGNR TO OLIVER CHIIILEDvPLOW WORKS, or soUrH BEND, INDIANA. I

GANG-mow.

Original 'application' led .Tune 19, 1913, Serial No. 774,669. Dividedand this application filed September 13, 1913. Serial No. 739,586. l

To all w/'Lom it vmag/ concern:

Be it knownthat I, NORMAN I. MILLIKEN, of South Bend, in the county ofSt.` Joseph 'and State of Indiana, have invented certain new and usefulImprovements in Gang Plows; and I do hereby declare the following tofbea full, clear, and exact description of the invention, such as willenable others skilled in the art towhich it appertains to make and usethe same. -v

This invention relates to an improvement in gang plows and is a divisionof my application No. 774,669 filed' June 19th, 1913.`

The object of this invention isto provide simple and e'flicient meansfor imparting independent vertical adjustment to each of the severalplows of a gangplow.,v

formed of the channel bars 2 and 3, `and is' Y pivotally' and adjustablyconnected at itsy forward end to the plow frame.

.4l represents the plow standard, the. upperV end of which is providedwith a for- -wardly projecting arm 42, having' an are shaped. slot 43 inits rear end, while'its forward end isprovided with an open slot 44 inits upperedge and a break pin hole'45v near its lower edge. Between'thesidesvof thel arm and the channel beams arey interposed the frictionplates 46, the forward ends of which are formed with depending lugs 47,

.each of'which is provided with a hole 48. Thev break pin 48a isinserted through the holes in the friction pl ate'sandthe hole 45- inthearm of thestandard. A. bolt 49 passes "through holes 50 in thechannel beams and.

. friction plates 46, and throughltheopen: slot 44 inthe forward end: ofthe..l standard arm 42,'and-- serves to force and hold the outersurfacesfofthe arm in snug frictional con.- tact with the' innersurfaces of the fr1ct1on the forward end of the standard arm are eachprovided with a Hat bearing surface 51 which extends'the entire width ofthe arm.

Patented May 5, 1914.'

A bolt 54 passes through the channel beams, j

the arms 53 of the stirrupft-he friction plates and the larc shaped slot43 inthe standard arm, andis retained in place Vby a nut 55.

A set screw 56 passes through the upper end of the stirrup and engagesthe upper edge of the standard. In order to insure an intimatefrictional engagement of the rear end ofthe standard arm with the innersurface of the friction plates, the rear end of'the standard arm isprovided on its opposite sides with ribs 57--58 having fiat faces 59extending the entire width of the arm and which engage the innersurfaces' of the friction plates..

Toadjust the angular position of the standard with relation to the beam,for the purpose of varying the pitch or suction of I the plow, the nut55 is loosened which er.y

mits the standard to be raised or lowere as may be desired and whenproperly adjusted the nut is again tightened with'the effect of forcingthe friction plates into snug frietional contact with the opposite'sides of the standard arm and'retain'ing it againstaccidental movementorfdisplacement. The set screw 56. is then adjusted- 'so as to engagethe upper edge of the standard and prevent its upward movement and.displacement. will thus be observed that the itch or suc.- tion of theplow may be readily. varied to In the event the plow should strike anob-'l struction which would bel liable to break or Y injure the plowpoint or other part of the plow, the abnormal strain on the plow wouldthe plow` to rotate. on the boltv 54 and thus Itl ` suit di'erent soilsor conditionsof the soil.

` operate to break the break pin and permit ride over theobstruction'and thereby preservethe plow against breakage or injury.Whenever the soil is such'- that no obstructions of a charactertoinjurethe plow are liable to be encountered, the forward end of .thestandard arm `may be ysecured tothe beam by a bolt 60..

It is evident that many slight, changes 'might be resorted toinv therelative arrangement of parts shown and described without departing fromthe spirit and scope of my invention. Hence I would have it understoodthat I do not wish lto confine myself to the exact construction andarrangement of parts shown and described but Having fully described myinvention what y claim as new and desire to secure by Letters-Patent, is

l. The combination with a plow beam, of a standard provided withaforwardly projecting arm having an open slot formed in its upper edge,and a clamping bolt extending through the beam and said slot.

The combination with a plow beam and a standard provided with aforwardly prol, jecting arm, lof friction plates interposed betweenthestandard arm andl plow beam sections, the forwardends of the frictionplates being formed/to project below the beam sec- '-tion`s, .and abreak pin supported in the frictionv plates below the plow beam.

*"1 3. The combination with Va plow beam consisting of two sections andastandard provided wth an elongated slot in its upper end, of frictionplates secured to the plow beam sections at respective sides of thestandard, a stirrup having its arms interposed between the standard andfriction plates, and a bolt passing through the low beamsections,stirrup arms, friction p atesy.-

and elongated opening in the standard. l

4. The combination with the 'plow beam sections and friction platessecured thereto,

of a standard provided with a forwardly projecting arm formed with flatsurfaces on .its front and rear ends which engage the respective sidesof standard arm, of a break pin, means for firmly clamping together-theforward end of the standard arm, friction plates and plow beam sections.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses. v

NORMAN I. MILLIKEN.

Witnesses:

Louise A. MANN, H. S. Bn'rrs.

